重组集成干扰素α体外抗单纯疱疹病毒Ⅰ型和Ⅱ型的药效学研究

目的探讨重组集成干扰素α(IFN-Conα)在体外对单纯疱疹病毒Ⅰ型(HSV-Ⅰ)和Ⅱ型(HSV-Ⅱ)的抑制作用.方法应用细胞病变抑制法,观察不同浓度的重组集成干扰素α对HSV-Ⅰ和HSV-Ⅱ型病毒感染Vero细胞的抑制作用.结果IFN-Con α对Vero细胞无明显细胞毒作用,其中度毒性浓度(TC50)＞3μg/ml.对HSV-Ⅰ型和HSV-Ⅱ型的50%的抑制浓度(IC50)分别是(1.8×10-4±0.3×10-4)μg/ml和(3.5×10-4±1.5×10-4)μg/ml.其结果显著优于阳性对照药物阿昔洛韦和干扰素α(IFN-α),其IC50阿昔洛韦对HSV-Ⅰ和HSV-Ⅱ分别为(6.4×10-1±0.6×10-1)μg/ml和(19.1±2.42)μg/ml;IFN-α则分别为(1.6×10-2±1.0×10-2)μg/ml和(3.7×10-2±7.04×10-3)μg/ml.结论IFN-Con α抗HSV-Ⅰ型和HSV-Ⅱ型的有效剂量明显低于阳性对照药阿昔洛韦和干扰素α(P＜0.01).     

中药大黄的生化学研究 ⅩⅩⅨ.蒽醌衍生物对小鼠P388白血病的抑制作用

大黄蒽醌衍生物大黄酸、大黄素和芦荟大黄素(40mg/kg·d×7ip)延长P388白血病小鼠存活期,分别为61%,47%和36%,腹水量和癌细胞数也相应减少。[~3H]TdR、[~3H]Urd及[~3H]Leu参入试验表明,大黄酸、大黄素和芦荟大黄素明显抑制P388癌细胞DNA、RNA和蛋白质的生物合成,呈剂量依从性。抑制(~3H)TdR的IC_(50)分别为65,55和79μg/ml;对(~3H)Urd的IC_(50)分别为46,50和80μg/ml;对(~3H)Leu的IC_(50)为58,75和88μg/ml。表明大黄酸和大黄素的抑制作用较强,芦荟大黄素次之。     

全反式维甲酸对人卵巢癌细胞株HO8910增殖、侵袭能力的影响

目的:观察全反式维甲酸(All-trans retinoic acid,ATRA)对体外培养人卵巢癌细胞株HO8910增殖、侵袭能力的影响,为ATRA应用于卵巢癌的临床治疗提供实验依据.方法:选用人卵巢癌细胞株HO8910进行体外培养,以不同浓度的ATRA处理HO8910细胞,四甲基偶氮唑蓝(MTT)比色法检测细胞增殖抑制情况,倒置显微镜进行形态学观察,Transwell小室体外侵袭实验检测细胞侵袭能力.结果:(1)ATRA浓度为10~(-7)～10~(-5)mol/L时,均明显抑制HO8910细胞的增殖(P<0.05),并具有时间-剂量依赖性.24、48、72 h ATRA抑制HO8910细胞增殖的IC_(50)值分别为2.331×10~(-5)、0.998×10~(-6)、0.891×10~(-7)mol/L.(2)倒置显微镜可观察到经10~(-6)mol/LATRA处理的HO8910细胞部分发生形态学的良性分化.(3)体外侵袭实验显示经10~(-6)mol/L ATRA处理的HO8910细胞,穿膜细胞数目明显减少(P<0.05).结论:ATRA能明显抑制人卵巢癌细胞株HO8910的增殖、侵袭能力,有望为ATRA应用于卵巢癌的临床治疗提供新的有效的途径.     

HPLC法检测茵陈五苓散中3种有效成分的含量

目的:建立高效液相色谱(HPLC)分析方法测定茵陈五苓散中绿原酸、新绿原酸、异绿原酸A的含量。方法:水煎法制备茵陈五苓散溶液。采用HPLC法检测茵陈五苓散溶液中3种成分新绿原酸、绿原酸、异绿原酸A的含量,并进行方法学考察。选用Agilent HC-C_(18)色谱柱(4.6 mm×250 mm,5μm),以0.1%甲酸水溶液-乙腈为流动相进行梯度洗脱,柱温30℃,体积流量1 ml/min,紫外检测器检测波长327 nm,进样量10μl。结果:新绿原酸在0.66～6.56μg/ml、绿原酸在5.61～56.10μg/ml、异绿原酸A在1.22～12.15μg/ml范围内线性关系良好。重复性实验(n=6)新绿原酸、绿原酸、异绿原酸A的RSD分别为2.11%、1.65%、1.84%;日内/日间精密度实验RSD均0.87%;稳定性实验RSD均0.60%;3种成分的平均加样回收率分别为102.66%、101.68%、100.96%,RSD分别为1.30%、1.90%、0.97%,均符合测定要求。测得制备的3批茵陈五苓散溶液中新绿原酸、绿原酸和异绿原酸A的平均含量分别为30.790、120.104、51.812μg/ml。结论:该方法操作简便,重复性和稳定性好,精密度高,适用于茵陈五苓散中以上成分的含量测定。     

中药大黄的生化学研究—ⅩⅩⅦ.蒽醌衍生物对胰腺四种酶的抑制作用

Ⅰ.大黄素对胰激肽释放酶、胰蛋白酶和胰脂肪酶均有很强的抑制作用,IC_(50)分别为31.5μg/ml,40.5μg/ml和46.5μg/ml。牛血清白蛋白(BSA)和烟酰胺嘌呤二核苷酸(NAD~ )对大黄素抑制胰蛋白     

中药大黄的生化学研究 ⅩⅩⅨ.蒽醌衍生物对小鼠P388白血病的抑制作用

大黄蒽醌衍生物大黄酸、大黄素和芦荟大黄素(40mg/kg·d×7ip)延长P388白血病小鼠存活期,分别为61%,47%和36%,腹水量和癌细胞数也相应减少。[~3H]TdR、[~3H]Urd及[~3H]Leu参入试验表明,大黄酸、大黄素和芦荟大黄素明显抑制P388癌细胞DNA、RNA和蛋白质的生物合成,呈剂量依从性。抑制(~3H)TdR的IC_(50)分别为65,55和79μg/ml;对(~3H)Urd的IC_(50)分别为46,50和80μg/ml;对(~3H)Leu的IC_(50)为58,75和88μg/ml。表明大黄酸和大黄素的抑制作用较强,芦荟大黄素次之。     

日本野葡萄中新的聚酚5′-核苷酸酶抑制剂及其生物活性

从日本产的一种酿酒用野葡萄(koshu)的种子和皮中分离出四种新的5′-核苷酸酶抑制剂,它们是NPF-88BU-IA,NPF-88BU-113.NPF-88BU-IIA,NPF-88BU-ⅡB,此外还有NPF-881BUI和NPF-88BU-Ⅱ。这些抑制剂具有抗肿瘤和抑制变异链球菌活性的聚酚物质,其活性如下: 5′-核苷酸酶抑制活性:NPF-88BU-I和NPF-88BU-Ⅱ对鼠肝膜的5′-核苷酸酶有抑制活性,IC_(50)分别为10和9.8μg/ml,而NPF-88BU-IA,NPF-88BU-ⅡA.NPF88BU-IB和NPF-88BU-ⅡB对蛇毒的5′-核苷酸酶有抑制性,其IC_(50)分别1.5,1.0.     

钙调素拮抗剂EBB抗小鼠肝癌的实验研究

钙调素拮抗剂的抑癌作用及对化疗药的增效作用已有报道.本实验观察新合成钙调素拮抗剂O-4-乙氧基-丁基小柏胺(EBB)单独或与博莱霉素(BLM)联合应用,对小鼠肝癌的对抗作用. 以小鼠肝癌细胞(Hepatoma-22)为靶细胞,每孔5×10~4个/ml,与不同浓度EBB和BLM孵育72h后,作细胞计数,求得IC 50分别为1.3μg/ml和1.0μg/ml;每孔5×10~3个/0.1ml,与EBB和BLM孵育24h.用~3H-TdR参入法(0.2μCi/0.1ml)求得IC_(50)分别为1.0μg/ml及0.7μg/ml.EBB     

中药去黄的生化研究ⅩⅩⅣ.蒽醌衍生物对两种黄素酶的影响

大黄素对黄嘌呤氧化酶有较强的竞争性抑制作用,50%抑制的药物浓度为25.0μg/ml,抑制常数K_i值为1.22×10~(-4)mol/L。核黄素(4×10~(-4)mol/L)、三氯化铁(4×10~(-4)mol/L)、牛血清蛋白(1.0mg/ml)     

骆驼蓬碱、氟尿嘧啶对视网膜母细胞瘤细胞系SO-Rb50生物学效应

在体外检测了骆驼蓬总碱,氟尿嘧啶(fluorouracilum,5-Fu)对人视网膜母细胞瘤细胞系SO-Rb50的生物学效应。两种药物对该细胞的半数抑制浓度(IC_(50))分别是1.437μg/ml与5.321μg/ml,提示Rb细胞在体外对化疗敏感。临床Rb化疗效果欠佳可能与血-视网膜屏障有关。     

APPLICATION OF LORNOXICAM TO PATIENT-CONTROLLED ANALGESIA IN PATIENTS UNDERGOING ABDOMINAL SURGERIES

FOR anesthesiologis s ,treatingpostoperativepainhas alwaysbeen a problem.Althoughopioidshave been provedtobe effective,theirsideeffectscouldnotbeignored.With thedevelopmentofscienceand pharmacology,many drugs with aspectsof satisfactoryanalgesicefficacyand couldbe welltoleratedby patientshave been developed.And lornoxicamisone of them, which isa non-steroidalanti-inflammatorydrug (NSAID ), with analgesic, anti-infl-ammatory,andantipyreticproperties.Itseliminationhalf-time(3 to 5 hours) isle…     

Dr.Zhang Ren''''s Experience in the Acupuncture Treatment of Different Diseases with the Same Therapeutic Principle

Dr.Zhang Ren,the chief physician,is the chairman of Shanghai Acupuncture and Moxibustion Association.Having been engaged in medicine for about 40 years,he is experienced in treating various intractable diseases.In his long years of clinical practice,he advocates taking the TCM differentiation as the basis to seek for the acupuncture method for treatment of modern intractable diseases.The author of this essay had the fortune to follow Dr.Zhang in study.The following is a summary of Dr.Zhang's experience in the acupuncture treatment for different intractable diseases with the same therapeutic principle.     

Luo Lingjie''''s Experience in Treating Chronic Nephropathy

In treating chronic nephropathy,Luo Lingjie,a chief physician,pays attention to regulating the balance between yin and yang,treating infection if present,and removing pathogenic factors.He prescribes gentle drugs and uses carefully strongly warming-tonifying ones,emphasizes the importance of persuading the patient to persist in treatment with medication and nurse one's health for recuperation,and is good at combined use of TCM and western medicine therapy and brings the merits of various therapies into full play,with obvious theraoeutic effects.     

Acupuncture Combined with Spinal Tui Na for Treatment of Primary Dysmenorrhea in 30 Cases

Objective: To observe the therapeutic effects in acupunture treatment of primary dysmenorrhea combined with spinal Tui Na, and study its mechanism. Methods: Thirty cases of the treatment group were treated by acupuncture combined with spinal Tui Na, and thirty cases in the control group were treated by routine acupuncture. Results: The total effective rate was 93.3% in the treatment group, and 73.3% in the control group, with a significant difference between the two groups (P<0.05). Conclusions: Acupuncture combined with spinal Tui Na has good prospects for treatment of primary dysmenorrhea.     

猪肺磷脂注射液联合经鼻持续气道正压通气对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性的影响

目的 探讨猪肺磷脂注射液联合经鼻持续气道正压通气(NCPAP)对呼吸衰竭早产儿的临床疗效及肌酸激酶同工酶活性(CK-MB)的影响.方法 选取呼吸衰竭早产儿80例,分为观察组和对照组各40例.对照组采用NCPAP给氧治疗,观察组给予NCPAP给氧联合猪肺磷脂气管内给药.观察两组患儿治疗前及治疗12h、24 h后PaO2、PaCO2、血氧饱和度(SaO2)、pH的变化情况,检测治疗前及治疗5d后血清CK-MB水平;评估两组患儿的临床治疗效果.结果 两组患儿PaO2、PaCO2、SaO2、pH比较,差异均有统计学意义(P＜0.05),其中观察组治疗后的PaO2、SaO2、pH均高于对照组,PaCO2则低于对照组.两组的PaO2、SaO2、pH均随观察时间延长而升高(P＜0.05),PaCO2均随观察时间的延长而降低(P＜0.05).观察组治疗有效率为87.5％,显著高于对照组的70.0％ (P ＜0.05).治疗5d后两组患儿血清CK-MB水平均较前降低(P＜0.05),且观察组明显低于对照组(P＜0.05).结论 猪肺磷脂注射液气管内给药联合NCPAP可以显著降低呼吸衰竭早产儿CK-MB的含量,提高治疗有效率,起到很好的呼吸循环支持作用.     

Survey and practice of reporting quality of randomized controlled clinical trials on traditional Chinese medicine

Evidence obtained from randomized controlled trials （RCTs） has been generally accepted as the gold standard in the evaluation of clinical effectiveness. Readers need to understand the trial design, implementation, results, analysis and interpretation, so as to fully Jnderstand the results of RCTs. Thus, the investigators of RCTs have to report these items in a complete, accurate and clear manner. Since 1998, we have conducted several evaluations on the reporting quality of RCTs published in Chinese journals on traditional Chinese medicine （TCM） and results have shown that there is an urgent need for higher quality RCTs on TCM.     

TCM Treatment of Ankylosing Spondylitis by Tonifying the Kidney and Strengthening the Governor Vessel

Ankylosing spondylitis is a chronic and progressive disorder with inflammation mainly involving the central axis joints. It mainly affects the cervical spine and the lumbosacral area, with the pathogenesis closely related to the kidney and the Governor Vessel (GV). TCM holds that the syndrome is deficiency in origin and excess in superficiality, which is due to insufficiency of the kidney, deficiency of GV, and blocking of the channels with the invasion of exogenous evil, leading to poor circulation of qi and blood and malnutrition of the bones, muscles and joints. The TCM method of tonifying the kidney and strengthening GV to regulate circulation of qi and blood and check the arthralgia pain should be adopted, with the Kidney-Tonifying and GV Strengthening Decoction (益肾强督汤) prescribed.     

IMPROVING P-gp EXPRESSION IN HUMAN MONONUCLEAR CELLS IN VITRO TRANSFECTED BY MULTIDRUG RESISTANCE-1 mRNA

CHEMOTHERAPY playsa greatrolein the treat- ment of malignanttumors,especiallyingynecolo- gicalones.But inanticancerchemotherapy,leuko-cytopeniaisfrequentlytheprimarydose-limitingsideeffect factor.Moreover,cancersarefrequentlychemoresistantbe-causeof overexpressionof P-glycoprotein(P-gp), which isencodedby multidrugresistancegene (MDR1 ) and detectableinup to50% ofhuman cancersand renderscellsresistancetoanticancerdrugs.The safetyand potentialtherapeuticbenefitof mdr1 gene transferredto h…